What of the life on Mars is not "as we know it" ?
I think we don't have a full evaluation of what "life" is capable of.
This theory doesn’t hold water.
Humans to blame!
Space travel is going to require better propulsion systems, and hopefully gravity control. Setting gravity aside for now, why arent we spending nearly ALL of our resources on a productive propulsion system?
I think we need more physics and less geology, and now. Did Columbus want geologist or better boats? We need better boats, then we can get geologist.
Another bit of evidence that points to life being rare.
Marvin the Martian... 😀
There was life on earth before oxygen. Who knows what forms it can take?
“...they found that the Martian crust can hold more than twice the amount of water as Earth,...”
Study: Deep beneath the earth, more water than in all the oceans combined
http://www.freerepublic.com/focus/f-news/3300920/posts
Earth may have underground ‘ocean’ three times that on surface
http://www.freerepublic.com/focus/news/3167417/posts
Huge ‘Ocean’ Discovered Inside Earth
http://www.freerepublic.com/focus/chat/1794270/posts
Kola Superdeep Borehole
https://www.atlasobscura.com/places/kola-superdeep-borehole
And what did the Russians find in the deepest borehole besides granite decreasing in density and increasingly more porous? Increasingly more water.
Mars, the great picker upper.